Material Analysis
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Weather resistance deterioration of PMMA products
Problem Phenomenon
Outdoor PMMA turns yellow and light transmittance decreases after a period of use.
Cause Analysis
UV radiation and heat-humidity jointly cause PMMA surface microcracks and oxidation.
Solution
Use weather-resistant grade PMMA (containing UV absorber); surface protective coating.
Key Takeaway
PMMA weather resistance is the key to outdoor applications.
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